Manual operator for awning sash windows

ABSTRACT

A manual operator for awning sash windows. An actuating arm for connection to a sash is received in a guide passage which includes a resilient insect guard for precluding the passage of insects through the passage and for biasing detents formed on the arm into engagement with a detent-receiving recess within the passage. The passage is configured and the insect guard arranged so that the arm can be wholly removed from the passage and easily reinserted without jamming against the insert guard.

United States Patent 1 1 1111" 3,747,272 I Martin 1451 July 24, 1973 [54] MANUAL OPERATOR FOR AWNING SASH 1,993,050 3/1935 Cook 160/95 WINDOWS Primary Examiner-Kenneth Downey [75] Inventor. Jerry L. Martin, Owatonna, Minn. Attorney nofgren, wegner, Allen, stenman & [73] Assignee: Truth Incorporated, Owatonna, McCord Minn.

22 Filed: Sept. 22, 1971 a [571 ABSTRACT pp N6: 182,721 A manual operator for awning sashwmdows. An actuating arm for connection to a sash is received in a guide passage which includes a resilient insect guard for pre- [52] US. Cl. 49/356, 160/95 cluding the passage of insects through the passage and [51] Int. Cl E05 9/00 for biasing detents formed on the arm into engagement [58] Field of Search 49/356, 324; 160/95, with a detent-receiving recess within the passage. The

160/103; 292/263, 264, 265, 270, 273, 274 passage is configured andthe insect guard arranged so that the arm can be wholly removed from the passage [56] 1 References Cited and easily reinserted without jamming against the insert UNITED STATES PATENTS, s 2,961,266 11/1960 ..Ahlgren 160/95 x 6 Claims, 4 Drawing Figures.

MANUAL OPERATOR FOR AWNING SASII WINDOWS BACKGROUND OF THE INVENTION This invention relates to manual operators for awning sash windows embodying a frame in an outwardly hinged sash of the type disclosed, for example, in U. S. Pat. No. 3,461,609 to Armstrong and U. S. Pat. No. 2,961,266 to Ahlgren, which patents represent the most pertinent prior art currently known to applicant.

In such constructions, there is provided an elongated operating arm having means at one end for movable connection to a sash and a gripping portion at the other end by which the arm may be moved to move the sash within its frame. A guide housing is also provided and is adapted to be secured to a sill. Typically, the guide housing will have a guide passage which receives the arm and, in some cases, as depicted, for example, by Ahlgren, the same may be provided with a recess for receiving detent projections formed on the arm along with a spring for biasing the projections on the arm into the recess.

One problem attendant to the use of such structure is encountered during window cleaning or maintenance. Constructions such as that shown by Armstrong require a certain amount of disassembly before the arm may pass through the passage due to an enlarged gripping portion thereon of a size too large to pass through the passage. While such is not a serious obstacle in the case of a structure such as that shown by Ahlgren, when the arm is to be returned into the passage, some difficulties are encountered in that the end of the same will jam against the spring used to bias the arm to insure cooperation between the detents provided.

SUMMARY OF THE INVENTION It is the principal object of the invention to provide a new and improved manual operator for awning sash windows. More specifically, it is an object of the invention to provide a construction wherein an operating arm may be completely removed from a passage in a guide base and easily reinserted therein without jamming against a spring employed for urging detent means on the arm into a recess associated with the passage or an insect guard designed to block the passage of insects into a structure through the passage.

The exemplary embodiment of the invention achieves the foregoing objects by means of a structure including an elongated arm having means at one end adapted to be secured to a sash and a gripping portion defined at the other end. Intermediate the ends of the arms there is provided a plurality of projections serving as detent means for holding the sash in a desired position relative to a frame to which it may be hingedly secured. A guide base adapted to be secured to a sill is provided and the same includes a passage for receiving the arm and of such a size that the gripping portion of the end of the arm may pass freely therethrough. Within the passage is an insect guard and a biasing spring which are elongated in the direction of the passage and have a mounting end and a free end. The two are mounted in the passage such that their free ends are directed toward the gripping portion of the arm so that when the arm is to be inserted into the passageway, the gripping portion merely moves the insect guard upwardly and out of the path of movement without jamming.

Additionally, the invention contemplates a unique orientation of the spring with regard to a detent receiving recess in the passageway so as to insure the existence of a more positive detaining connection than can be obtained with prior art structures.

Finally, the invention contemplates a novel construction of an insect guard and spring means for biasing the same into engagement with the arm as well as to provide for the biasing of the arm for detent purposes. The

construction includes a U-shaped spring member having its legs terminating in outwardly projecting ends which in turn are received in grooves in the mounting end of the insect guard.

Other objects and advantages will become apparent from the following specification taken in conjunction with the accompanying drawings.

DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an awning sash window with which the invention is intended to be used;

FIG. 2 is a vertical section taken approximately along the line 22 of FIG. 1;

FIG. 3 is a horizontal section taken approximately along the line 3-3 of FIG. 2; and

FIG. 4 is an exploded view of a portion of a guide base employed in the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT A typical awning sash window as it would appear when viewed from the interior of a structure including the same is illustrated in FIG. 1 and is seen to comprise a window frame, generally designated 12, having a sill 14. The interior portion of the frame 12 may mounta screen 16 while the exterior may hingedly mount in a conventional fashion a window sash, generally designated 18. a

A manual operator for the sash l8 and made according to the invention includes a guide base, generally designated 20, an elongated actuating arm, generally designated 22, and a means, generally designated 24, for securing the arm 22 to the sash 18.

With reference now to FIG. 2, the securing means 24 includes a bracket 26 secured to the sash 18 by any suitable means and journaling one end of a link 28. The end of the link 28 opposite the bracket 26 is pivotally secured to the arm 22 as by a rivet 30 or the like. The other end of the arm 22 defines a gripping portion 32 (FIG. 1) which may simply be the end of the arm 22 or, for example, a relatively shallow notch formed therein.

Returning to FIG. 2, the arm 22, intermediate its length, includes a plurality of depending lugs 34 which may be struck out of the arm 22 to define detent pro-v jections as will be seen.

The arm 22 extends through a passage 36 in the guide base 20. The lower extremity of the passage 36 mayinclude a recess 38'for receiving any one of the detent As best seen in FIGS. 3 and 4, the guide base is formed with bores 42 through which conventional screws may be passed to secure the same to the sill 14. Intermediate the bores 42 is an insert receiving recess defined by side walls 44. Within the recess defined by the side walls 44 is a U-shaped insert, generally designated 46, which preferably is formed of plastic or the like. The insert 46 includes upstanding side walls 48 and a bottom wall 50, the latter including an opening 52 defining a portion of the recess 38. All of the walls 48 and 50 terminate in an outwardly extending flange 54 which, as best seen in FIG. 3, abuts against the front wall 56 of the guide base 20. A base plate 57 may serve to hold the insert in place.

At the upper ends of the upstanding side walls 48, and oppositely thereon from the flange 54, are notches 58 which are adapted to receive ears 60 on the mounting end 62 of a flap-like insect guard 64. The insect guard 64 may be formed of plastic or the like and includes a free end 66 opposite the mounting end 62 and the arrangement is such that the free end 66 is directed toward the gripping portion 32 of the arm 22. The cars 60 are provided with L-shaped grooves 68 for locating a spring 70. The spring 70 is U-shaped and has its legs terminating in outwardly extending ends 72 received in the grooves 68 such that when the insert 46 is received within the guide base 20, the outturned ends 72 of the spring 70 are firmly sandwiched by the insect guard 64 against the upper side of the passage 36 defined by the guide base 20.

The spring 70 serves to bias the insect guard 64 into engagement with the arm 22 so as to close the passage 36 for all positions of the arm 22 therein.

In order to insure positive biasing, near the extremities of the legs of the spring 70 there are provided elbows 74 so that the vast majority of the spring 70 is downwardly turned to engage the upper surface of the insect guard 64 to accomplish the foregoing purposes. Additionally, the location of the free end just above the recess 34 insures that force applied to the arm is very close to the detent structure to render the detaining action more positive than in prior art devices.

From the foregoing and a consideration of FIG. 2, it will be apparent that should the arm 22 be fully removed from the passage 36, reinsertion of the same therein as facilitated by the fact that the free end 66 of the insect guard 66 is directed toward the gripping portion of the arm 22 so that the same will merely engage the underside of the insect guard 64 and force the same upwardly against the bias of the spring 70. Thus, the construction avoids any possibility ofjamming and permits easy removal of the arm 22 for window maintenance or washing or the like.

I claim 1. A manual operator for an awning sash window embodying a frame having a sill and an outwardly hinged sash, said operator comprising:

an elongated actuating arm,

means on one end of said arm for movably securing said arm to a sash,

the other end of said arm defining a gripping portion adapted to be grasped to manipulate the arm and move the sash relative to the frame,

a guide base adapted to be secured to a sill and having a guide passage extending therethrough, said guide passage receiving said arm and being ofa size sufficient to allow free passage of said gripping portion therethrough,

a flap-like insect guard within said passage and resiliently embracing said arm, said insect guard being elongated in the direction of the passage and hav ing a free end and a mounting end, and

means mounting said insect guard within said passage at said mounting end so that said free end extends toward said gripping portion,

whereby when said arm is wholly removed from said passage, the arm may be easily reinserted therein without jamming against said insect guard.

2. The manual operator of claim 1 further including cooperating detent means on said arm and in said passage, the free end of said insect guard being in substantial alignment with the portion of the detent means within said passage and serving to urge the portion of the detent means on said arm into detaining engagement with the portion of the detent means in said passage.

3. The manual operator of claim 2 wherein said insect guard comprises a flap of flexible material backed by spring means.

4. The manual operator of claim 3 wherein said spring means comprises a U-shaped spring having legs terminating in outturned ends, the mounting end of said insect guard including grooves receiving the ends of said legs for properly orienting the spring with respect to the insect guard.

5. The manual operator of claim 4 wherein said detent means comprises downwardly struck lugs located along the length of said arm intermediate its ends and a lug receiving recess in the bottom of said passage.

6. A manual operator for an awning sash window embodying a frame having a sill and an outwardly hinged sash, said operator comprising:

an elongated actuating arm,

means on one end of said arm for movably securing said arm to a sash,

the other end of said arm defining a gripping portion adapted to be grasped to manipulate the arm and move the sash relative to the frame,

detent means on said arm, said detent means comprising a plurality of projections spaced along the length of the arm,

a guide base adapted to be secured to a sill and having a guide passage extending therethrough,

said guide passage receiving said arm and being of a size sufficient to allow free passage of said gripping portion therethrough,

detent means adjacent said passage,

said detent means including a recess adapted to receive any one of the projections on said arm, and

spring means within said passage,

said spring means biasing said arm in a direction so as to cause a projection to enter said recess,

said spring means comprising an elongated member having a mounting end for mounting the same to said guide base and a free end resiliently engaging said arm,

said free end being directed toward said gripping portion whereby when said arm is wholly removed from said passage, the arm may be easily reinserted therein without jamming against said spring means. 

1. A manual operator for an awning sash window embodying a frame having a sill and an outwardly hinged sash, said operator comprising: an elongated actuating arm, means on one end of said arm for movably securing said arm to a sash, the other end of said arm defining a gripping portion adapted to be grasped to manipulate the arm and move the sash relative to the frame, a guide base adapted to be secured to a sill and having a guide passage extending therethrough, said guide passage receiving said arm and being of a size sufficient to allow free passage of said gripping portion therethrough, a flap-like insect guard within said passage and resiliently embracing said arm, said insect guard being elongated in the direction of the passage and having a free end and a mounting end, and means mounting said insect guard within said passage at said mounting end so that said free end extends toward said gripping portion, whereby when said arm is wholly removed from said passage, the arm may be easily reinserted therein without jamming against said insect guard.
 2. The manual operator of claim 1 further including cooperating detent means on said arm and in said passage, the free end of said insect guard being in substantial alignment with the portion of the detent means within said passage and serving to urge the portion of the detent means on said arm into detaining engagement with the portion of the detent means in said passage.
 3. The manual operator of claim 2 wherein said insect guard comprises a flap of flexible material backed by spring means.
 4. The manual operator of claim 3 wherein said spring means comprises a U-shaped spring having legs terminating in outturned ends, the mounting end of said insect guard including grOoves receiving the ends of said legs for properly orienting the spring with respect to the insect guard.
 5. The manual operator of claim 4 wherein said detent means comprises downwardly struck lugs located along the length of said arm intermediate its ends and a lug receiving recess in the bottom of said passage.
 6. A manual operator for an awning sash window embodying a frame having a sill and an outwardly hinged sash, said operator comprising: an elongated actuating arm, means on one end of said arm for movably securing said arm to a sash, the other end of said arm defining a gripping portion adapted to be grasped to manipulate the arm and move the sash relative to the frame, detent means on said arm, said detent means comprising a plurality of projections spaced along the length of the arm, a guide base adapted to be secured to a sill and having a guide passage extending therethrough, said guide passage receiving said arm and being of a size sufficient to allow free passage of said gripping portion therethrough, detent means adjacent said passage, said detent means including a recess adapted to receive any one of the projections on said arm, and spring means within said passage, said spring means biasing said arm in a direction so as to cause a projection to enter said recess, said spring means comprising an elongated member having a mounting end for mounting the same to said guide base and a free end resiliently engaging said arm, said free end being directed toward said gripping portion whereby when said arm is wholly removed from said passage, the arm may be easily reinserted therein without jamming against said spring means. 